My pump is the original one that I purchased with my Intex 10x20 in 2010. I haven't had any problems really, but I am wondering since I saw a pump on clearance if I should replace it before I do start having problems. How long does a pump like this normally last? I don't want to spend extra money if I don't have to, but if it's a good move, I'd rather get it on clearance because I don't know how to fix things like that if something does go wrong. The Intex Krystal Clear 1,600 Gallon Sand Filter is the one I was looking at for $129.00. Good purchase or just wait? Thanks.